Vishnurekha C, Annamalai Sankar, Baghkomeh Parisa Norouzi, Ditto Sharmin D
Department of Pedodontics and Preventive Dentistry, Chettinad Dental College and Research Institute, Rajiv Gandhi Salai, Kelambakkam, Kanchipuram, Tamil Nadu, India.
Department of Pedodontics and Preventive Dentistry, Sathyabama Dental College and Hospital, Kelambakkam, Kanchipuram, Tamil Nadu, India.
Indian J Dent Res. 2018 Nov-Dec;29(6):744-748. doi: 10.4103/ijdr.IJDR_490_17.
The aim of this in vitro study was to evaluate and compare the effect of protective coating G-Coat Plus on microleakage of conventional glass ionomer cement (CGIC) and resin-modified glass ionomer cement (RMGIC) in primary molars.
A total of 120 samples were divided into four groups with 30 samples in each group. Group A - teeth restored with CGIC. Group B - teeth restored with CGIC coated with G-Coat Plus. Group C - teeth restored with RMGIC. Group D - teeth restored with RMGIC coated with G-Coat Plus. Microleakage was tested using 2% basic fuschin dye penetration and measured at ×40 original magnification under the stereomicroscope.
The results of this in vitro study showed that coating with G-Coat Plus showed a reduction in microleakage in CGIC and complete absence of microleakage in RMGIC when compared to the noncoated groups, which was statistically significant. CGIC without G-Coat Plus showed highest microleakage followed by RMGIC without G-Coat Plus, followed by a relatively less microleakage in CGIC with G-Coat Plus.
Significant reduction in microleakage was seen in conventional GIC and RMGIC with G-Coat Plus when compared to conventional GIC and RMGIC without G-Coat Plus.
本体外研究的目的是评估和比较保护涂层G-Coat Plus对乳牙中传统玻璃离子水门汀（CGIC）和树脂改性玻璃离子水门汀（RMGIC）微渗漏的影响。
总共120个样本被分为四组，每组30个样本。A组——用CGIC修复的牙齿。B组——用涂有G-Coat Plus的CGIC修复的牙齿。C组——用RMGIC修复的牙齿。D组——用涂有G-Coat Plus的RMGIC修复的牙齿。使用2%碱性品红染料渗透测试微渗漏，并在体视显微镜下以×40原始放大倍数进行测量。
本体外研究结果表明，与未涂层组相比，涂有G-Coat Plus可使CGIC的微渗漏减少，RMGIC完全无微渗漏，差异具有统计学意义。未使用G-Coat Plus的CGIC微渗漏最高，其次是未使用G-Coat Plus的RMGIC，然后是使用G-Coat Plus的CGIC微渗漏相对较少。
与未使用G-Coat Plus的传统GIC和RMGIC相比，使用G-Coat Plus的传统GIC和RMGIC微渗漏显著减少。
